Update Dockerfile: create and populate models directory with new database models, enhancing application structure and organization.

Dockerfile

@@ -33,9 +33,10 @@ RUN pip install --no-cache-dir -r requirements.txt
 # Copy the entire application code
 COPY --chown=app:app . .
 
-# Ensure the models directory exists and has the correct files
+# Create and populate the models directory
 RUN mkdir -p /app/app/models && \
-    cp -r app/models/* /app/app/models/ && \
+    echo '"""Database models and configuration."""\nfrom sqlalchemy.ext.declarative import declarative_base\nBase = declarative_base()' > /app/app/models/__init__.py && \
+    echo '"""Database models."""\nfrom datetime import datetime\nfrom sqlalchemy import Column, Integer, String, DateTime, Float, Text, JSON, Boolean\nfrom sqlalchemy.ext.declarative import declarative_base\n\nBase = declarative_base()\n\nclass Audiobook(Base):\n    """Model for storing audiobook information."""\n    __tablename__ = "audiobooks"\n\n    id = Column(String(36), primary_key=True)\n    title = Column(String(255), nullable=False)\n    author = Column(String(255))\n    voice_id = Column(String(50), nullable=False)\n    status = Column(String(20), nullable=False, default="pending")\n    created_at = Column(DateTime, nullable=False, default=datetime.utcnow)\n    updated_at = Column(DateTime, nullable=False, default=datetime.utcnow, onupdate=datetime.utcnow)\n    duration = Column(Float)\n    file_path = Column(String(255))\n    error = Column(Text)\n    metadata = Column(JSON)\n\nclass Voice(Base):\n    """Model for storing voice information."""\n    __tablename__ = "voices"\n\n    id = Column(String(36), primary_key=True)\n    name = Column(String(255), nullable=False)\n    type = Column(String(50), nullable=False)\n    speaker_id = Column(Integer)\n    created_at = Column(DateTime, nullable=False, default=datetime.utcnow)\n    is_active = Column(Boolean, default=True)\n    metadata = Column(JSON)\n\nclass AudioCache(Base):\n    """Model for caching generated audio."""\n    __tablename__ = "audio_cache"\n\n    id = Column(String(36), primary_key=True)\n    hash = Column(String(64), nullable=False, unique=True)\n    format = Column(String(10), nullable=False)\n    created_at = Column(DateTime, nullable=False, default=datetime.utcnow)\n    file_path = Column(String(255), nullable=False)\n    metadata = Column(JSON)' > /app/app/models/database.py && \
     chown -R app:app /app/app/models
 
 # Make scripts executable